Take vitamin B pills? Then you're definitely going to want to read this

If you take vitamin B supplements, you'd better check the bottle before you pop anymore pills: The FDA has issued a safety alert for Healthy Life Chemistry By Purity First B-50, warning that the product contains two anabolic steroids not listed on the label.

After receiving 29 adverse incident reports associated with the supplements, the FDA conducted a preliminary laboratory analysis on them. Turns out, vitamin B wasn't the only thing they contained: The pills also had methasterone and dimethazine, both of which are anabolic steroids. That's pretty scary stuff considering anabolic steroid use has been linked to symptoms such as acute liver injury. It can also cause serious long-term consequences like messed-up blood lipid levels, an increased risk of heart attack and stroke, masculinization in women, and more.

Sure enough, the people who filed complaints with the FDA said their symptoms ranged from fatigue, muscle pain, and missed periods to screwed-up liver and thyroid function.

If you've been taking Healthy Life Chemistry By Purity First B-50 and have experienced these symptoms—or any others—the FDA suggests seeing a doctor and reporting your experience to the FDA. And even if you haven't, this is a good wake-up call: It's absolutely crucial to discuss any supplements you are taking with your doctor so you can make sure the pills you're popping are both safe and effective.